Автор |
NARUSE, Hidenori |
Автор |
SAKAI, Hikoichi |
Дата выпуска |
1981 |
dc.description |
A new factor that not only inhibits brain microtubule assembly but also causes depolymerization of pre-assembled microtubules was purified from unfertilized sea urchin egg cortices. The purified fraction contained neither proteins nor nucleic acids. The inhibitory activity of the fraction was heat-stable and insensitive to various proteases, but decreased on treatment with glycosidases or with periodic acid. The purified factor was identified as a polysaccharide by analysis of the sugar composition. The sedimentation constant of the factor was estimated to be 9S by sucrose density gradient centrifugation. Polyacrylamide gel electrophoresis of the factor revealed a single broad band stained with periodic acid-Schiff reagent. The factor completely inhibited microtubule assembly at a factor: microtubule protein ratio of 0.03 (w/w). The polysaccharide was found to bind to microtubule-associated proteins, thereby inhibiting microtubule assembly. |
Формат |
application.pdf |
Издатель |
Oxford University Press |
Копирайт |
© 1981, by the Japanese Biochemical Society |
Тема |
Articles |
Название |
Evidence that a Polysaccharide from the Cortex of Sea Urchin Egg Inhibits Microtubule Assembly through Its Binding to Microtubule-Associated Proteins |
Тип |
research-article |
Electronic ISSN |
1756-2651 |
Print ISSN |
0021-924X |
Журнал |
Journal of Biochemistry |
Том |
90 |
Первая страница |
581 |
Последняя страница |
587 |
Аффилиация |
Department of Biophysics and Biochemistry, Faculty of Science, The University of TokyoHongo, Bunkyo-ku, Tokyo 113 |
Выпуск |
3 |